|
Category: Science-CAD
ELLIPSE
Download: http://download.softpedia.com/dl/176a332929ecb0cd5bd9144b32f651e2/4b9bb051/100153365/software/science/ellipse.zip
Operation System: Windows All
License:
Size: 20 KB
Date: 2010-03-13 16:14:01
Use this simple application to calculate the perimeter of an ellipse. Several algebraic approximations for the perimeter are given and their accuracy can be tested against a high accuracy model of the elliptic integral. Most regular geometric figures have simple rational expressions for their perimeters, e.g. 2*(l+w) for a rectangle or 2*pi*r for a circle. Unfortunately, this is not true for an ellipse. The perimeter of an ellipse is found using a complete elliptical integral of the second kind. Typically this involves looking up values in tables of this integral and then laboriously interpolating to get accurate values.In this program, a high accuracy (2E-8) approximation to this integral is implemented to find the perimeter. This value is then used as a reference to test the accuracy of several algebraic approximations to the perimeter.
www.cracksdata.com/get.php?id=1638
|
|
| |
